光谱学与光谱分析
光譜學與光譜分析
광보학여광보분석
SPECTROSCOPY AND SPECTRAL ANALYSIS
2014年
3期
704-708
,共5页
周璟玲%席宏波%周岳溪%许吉现%宋广清
週璟玲%席宏波%週嶽溪%許吉現%宋廣清
주경령%석굉파%주악계%허길현%송엄청
石化废水%三维荧光光谱%荧光有机物%水解酸化+A/O+接触氧化工艺
石化廢水%三維熒光光譜%熒光有機物%水解痠化+A/O+接觸氧化工藝
석화폐수%삼유형광광보%형광유궤물%수해산화+A/O+접촉양화공예
Petrochemical wastewater%Three-dimensional excitation-emission matrix%Fluorescence organic matter%Hydrolysis-acidification +A/O+ contact-oxidation process
石化废水排放量大、污染物成分复杂，对环境的危害较大。采用三维荧光光谱扫描技术分析了某大型石化企业综合污水处理厂各处理单元（水解酸化＋ A/O＋接触氧化工艺）进出水的荧光光谱特征。污水厂总进水包含四个荧光峰Peak A ，Peak B ，Peak D ，Peak E ，分别位于λex/λem ＝220/300，225/340，270/300，275/340 nm附近，荧光物质主要来自工业废水，水解酸化池出水各荧光峰强度有所降低，位置基本不变，厌氧池出水λex/λem ＝250/425 nm附近出现新荧光峰Peak C ，好氧池出水荧光峰Peak C处荧光强度有所增强，二沉池出水Peak A消失，二沉池之后水样荧光谱图变化不大；该处理工艺对荧光有机物的总去除率为92.0％，Peak A ，Peak B ，Peak D ，Peak E 附近的荧光有机物去除率分别为100.0％，91.2％，80.3％，92.0％；污水厂进水 IPeak B/IPeak E值波动较大而出水变化不大，表明该污水处理厂运行稳定，其处理工艺具有较强的抗冲击负荷能力。
石化廢水排放量大、汙染物成分複雜，對環境的危害較大。採用三維熒光光譜掃描技術分析瞭某大型石化企業綜閤汙水處理廠各處理單元（水解痠化＋ A/O＋接觸氧化工藝）進齣水的熒光光譜特徵。汙水廠總進水包含四箇熒光峰Peak A ，Peak B ，Peak D ，Peak E ，分彆位于λex/λem ＝220/300，225/340，270/300，275/340 nm附近，熒光物質主要來自工業廢水，水解痠化池齣水各熒光峰彊度有所降低，位置基本不變，厭氧池齣水λex/λem ＝250/425 nm附近齣現新熒光峰Peak C ，好氧池齣水熒光峰Peak C處熒光彊度有所增彊，二沉池齣水Peak A消失，二沉池之後水樣熒光譜圖變化不大；該處理工藝對熒光有機物的總去除率為92.0％，Peak A ，Peak B ，Peak D ，Peak E 附近的熒光有機物去除率分彆為100.0％，91.2％，80.3％，92.0％；汙水廠進水 IPeak B/IPeak E值波動較大而齣水變化不大，錶明該汙水處理廠運行穩定，其處理工藝具有較彊的抗遲擊負荷能力。
석화폐수배방량대、오염물성분복잡，대배경적위해교대。채용삼유형광광보소묘기술분석료모대형석화기업종합오수처리엄각처리단원（수해산화＋ A/O＋접촉양화공예）진출수적형광광보특정。오수엄총진수포함사개형광봉Peak A ，Peak B ，Peak D ，Peak E ，분별위우λex/λem ＝220/300，225/340，270/300，275/340 nm부근，형광물질주요래자공업폐수，수해산화지출수각형광봉강도유소강저，위치기본불변，염양지출수λex/λem ＝250/425 nm부근출현신형광봉Peak C ，호양지출수형광봉Peak C처형광강도유소증강，이침지출수Peak A소실，이침지지후수양형광보도변화불대；해처리공예대형광유궤물적총거제솔위92.0％，Peak A ，Peak B ，Peak D ，Peak E 부근적형광유궤물거제솔분별위100.0％，91.2％，80.3％，92.0％；오수엄진수 IPeak B/IPeak E치파동교대이출수변화불대，표명해오수처리엄운행은정，기처리공예구유교강적항충격부하능력。
Petrochemical wastewater is of huge quantity released during the production and complicated contaminants of petro-chemical wastewater will have immense negative impact on ecology environment. Three-dimensional excitation-emission matrix fluorescence(3D-EEM ) was used to investigate the characteristic fluorescence of influent and effluent from each processing unit of Hydrolysis-acidification +A/O+ Contact-oxidation Process in a typical petrochemical wastewater treatment plant . The re-sults showed that there were 4 fluorescence peaks named Peak A ,Peak B ,Peak D ,Peak E in the spectrum chart of influent , they are aroundλex/λem =220/300 ,225/340 ,270/300 ,275/340 nm ,the primary source of fluorescence organic matter (FOM ) is industrial wastewater. The fluorescence intensity of each fluorescence peak was decreased ,while location was unchanged in the effluent of Hydrolysis-acidification. Peak C appeared from the effluent of anaerobic tank at λex/λem =250/425 nm ,then the fluo-rescence intensity of Peak C was enhanced in the effluent of aerobic tank. Peak A disappeared from the effluent of secondary sed-imentation tank. The spectrum chart of the wastewater had no obvious variation after secondary sedimentation tank. The remov-al rate of FOM was expressed with the degradation percentage of the fluorescence intensity ,the total FOM was reduced by 92.0% after processing ,and the removal rate of the FOM fluoresce around Peak A ,Peak B ,Peak D ,Peak E were 100.0% , 91.2% ,80.3% ,92.0% respectively. A volatile IPeak B/IPeak E value of influent but a relatively stable value of effluent demonstra-ted that the wastewater treatment plant operated steadily and the process has higher capacity in resistance to shock loading.
